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  • Users: DWilliamA
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  1. DWilliamA

    Vinyl covered 304 SS sheets and Clear powder coat issues

    304 SS sheets, vinyl covered, #4 brushed, vinyl is stripped parts wiped with MEK type cleaners, run through typical powder coat wash cycle. They come of the wash cycle with streaks and drip marks (scum, light whitish) that bake on if allowed to run through heat dry cycle. Next we want a clear...
  2. DWilliamA

    6061-T6 machined surface defects - moon craters

    This is a continuation of thread (now closed) thread281-283298 my ultimate question.... unless someone has a machining related solution... will heat treat help this? working with 6061 T6 Bar stock 3/4"x3" During the last runs 6 months age we had copper contaminated coolant, since then we have...
  3. DWilliamA

    Aluminum surface 6061 T6 moon craters?

    Hi, first off - I am not a machinest. I am quality guy trying to chase down an answer. from what my machinest tells me, we are doing this right... here are the details. Extruded 6061 T6 Aluminum 3/4"x2-1/2" stock basically machined to a block shape, lots of flat shiny surfaces. Approximately...

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